Lifting a Corsair Trimaran off the trailer for service work
1. Support the tongue of the trailer on a pile of blocks. This is necessary because the trailer tongue jack that is normally used is only rated to 800 lbs and will in all likelihood bend if asked to support the full weight of the boat. Even the “heavy duty” jacks are only rated to 1200 lbs and are not up to the task
2. Use a short vertical motor boat stand to raise the transom of the boat until you see daylight under the floats and they are free to move.3. Pull one float away from the main hull. With any luck you should be able to clear the fender. You should always place a towel or piece of carpet on the fender to keep the float from scraping on the metal. Then lift the float up and out over the fender. This is probably easier with two people. We bend over with our knees bent, place our backs against the float and push up and out using our legs for power. The higher you raise the transom the easier this will be. That is because the higher you raise the transom, the more clearance you will have on each side between the floats and the float bunks. That will allow the main hull to pivot more and to clear the fender more easily and with less effort.
IF YOU ARE DOING THIS BY YOURSELF, BE SURE TO TIE THE BOAT TO THE TRAILER ON THE OPPOSITE SIDE FROM WHERE YOU ARE WORKING. OTHERWISE, WHEN YOU OPEN ONE SIDE, THE BOAT WILL TIP OVER AND YOU WILL NOT BE HAPPY.
4. Move the float far enough away from the boat to insert an angled sailboat stand against the hull where the aft folding mechanism is attached.
5. Now you can pull out the float and place a tall vertical boat stand under the forward beam.
6. Jump up on deck and bolt the cross beams in place.
7. Untie the other side and repeat steps 4 – 6.
If you have a number of helpers, you can open both sides at the same time just as long as you do it symmetrically. If you are going to do both sides together and have trouble clearing the fenders, clear the fender on one side and when you allow the boat to pivot slightly towards that side the other side should easily clear the fender.
To remove the trailer, go to each of the 4 stands and crank them up. You can do this by yourself going around and around the boat. You will probably need to raise the boat more than a few inches. Now you may CAREFULLY pull the trailer out from under the boat.
If you are going to be working under the boat or walking around on the deck, or leaving it for any period of time without the trailer under it, we strongly recommend and urge that 2 additional sailboat stands be installed under the boat where the forward folding mechanism attaches to the hull.
Brownell Stands required:
Vertical Stand For Raising The Transom:
All Models (One) MB-3 25" - 38"
Sailboat (angled) Stands For Blocking Under The Aft Folding Mechanism
All Models (Two) SB-2 48" - 65"
Vertical Stands For Raising The Forward Beams:
31 (Two) MB0XX 67" - 84
27/28 (Two) MB-0X 54" - 72"
24/Sprint (Two) MB-0 41" - 58"
(Smaller stands can always be used on larger boats with the addition of extra wood blocks)
Sailboat (angled) Stands For Blocking Under The Forward Folding Mechanism
All Models (Two) SB-2 48" - 65"
(The use of these two additional angled stands under the forward fold mechanism (after the trailer has been removed) will completely stabilize boat allowing walking on deck without fear of the boat falling)